SINTRA · APRIL · THE MONTH GUIDE
Sintra’s April is cool, green and frequently damp, on a hill that manufactures its own weather. The official normals for the area put the average afternoon at 67.8°F and the average night at 53.2°F, with 2.50 inches of rain spread across roughly eight wet days. Daylight has already stretched past thirteen hours. For anyone building a Lisbon trip, that combination settles one question: whether Sintra is a day trip you squeeze between two city days, or two nights you plan the week around.
April will not give you a swim. It gives long light, gardens at their greenest, and gates that open at 09:00 for the price they charge in August. It also asks for a rain shell in the day bag on a fair morning: the Serra makes its own cloud, and a clear sky over Lisbon is a poor forecast for the hill above it.
SINTRA IN APRIL · THE MONTH AT A GLANCE
April buys 67.8°F afternoons and 13 hours 17 minutes of daylight for the cost of 7.7 wet days: strong walking weather, no swimming weather.
AVERAGE HIGH 67.8°F · 7.7 WET DAYS · PENA PARK 12 EUR, PARK AND PALACE 20 EUR
Go for: hill walking at a 67.8°F ceiling, 210 hectares of park at Pena, 3,000 exotic species at Monserrate, and an evening that holds light until 20:14.
Think twice before: planning beach days off the back of a Sintra visit: rain falls on 7.7 days in an average April and we could not verify a water temperature for this coast.
Climate: IPMA 1991–2020, station Lisboa Gago Coutinho · Tickets: Parques de Sintra, read Sep 22, 2026 · full sources at the end
On this page
- Sintra weather in AprilHighs of 67.8°F and 7.7 wet days
- How cold April nights getLows of 53.2°F, and no sea reading
- Crowds and ticket prices in AprilWhat Parques de Sintra charges at the gate
- Things to do in Sintra in AprilPena, Monserrate, the Moorish Castle
- A two-day Sintra itineraryDay one on the hill, day two west
- April or May for Sintra?March, April and May in one table
- Is April a good time to visit Sintra?Our verdict, for and against
April in Sintra is a trip-planning question more than a sightseeing one: how many nights to give the hill, what to book before you fly, what to carry when the mist comes in. Anything that holds true in any month lives in the Sintra guide, and the country-wide calendar lives in Best Time to Visit Portugal.
Sintra weather in April: average highs, lows and rain days
| April in Sintra | Normal, 1991–2020 |
|---|---|
| Average high | 67.8°F |
| Average low | 53.2°F |
| Precipitation | 2.50 inches |
| Days with 1 mm (0.04 in) or more | 7.7 |
| Days with 10 mm (0.39 in) or more | 2.1 |
| Daylight on April 15 | 13 hours 17 minutes |
Every figure here comes from one instrument: IPMA’s station 579, Lisboa Gago Coutinho, 1991 to 2020 normals, at 341 feet (103.9 m). That is a real thermometer rather than a model grid cell, and it also sits about 12 miles (20 km) away and far lower than the Serra. The Sintra hill runs several degrees colder and much mistier than the station, so read 67.8°F as the valley ceiling and dress for less on the ridge.
Rain reaches the gauge on 7.7 days in an average April, counting any day with at least 1 mm (0.04 inch). Call it measurable rain about one day in four. Heavier weather, 10 mm (0.39 inch) or more, arrives on 2.1 days, so a two-week trip should budget for two genuine soakings. IPMA counts with its own thresholds, not the 0.10-inch line American tables use, and the two sets of day counts are not interchangeable.
Between the 53.2°F night and the 67.8°F afternoon there is a 14.6°F swing, and the hill widens it. A packable rain shell, a mid-layer you can strip off by 11:00, and shoes with grip for wet granite cover almost every April day in Sintra. Umbrellas lose to the wind on the ridge. Our Portugal packing list handles the rest of the bag.
On April 15 the sun rises at 06:57 and sets at 20:14 local time, for 13 hours 17 minutes of daylight. The Park of Pena takes its last admission at 18:00 and closes at 19:00, so the final hour of light belongs to the town rather than the hill. Book dinner in Sintra instead of a rushed return to Lisbon and the evening stops feeling clipped.
How warm is Sintra in April?
The average April afternoon reaches 67.8°F and the average night falls to 53.2°F, a 14.6°F spread from one end of the day to the other. Neither end is extreme and neither end is warm. Visitors arriving from a Florida winter tend to overpack shorts and underpack sleeves.
Mornings at the 09:00 gates want a fleece or a light jacket, and by 14:00 in the sun you will be carrying it. Climbing from the town up to the Moorish Castle generates its own heat even at 60°F, then the ridge wind takes it straight back. Cotton that gets wet up there stays wet for the rest of the visit.
We have no frost-day count for Sintra in April, and a monthly low normal of 53.2°F sits well clear of freezing, so we give no frost figure. We could not verify a sea-surface temperature for this stretch of coast either. Where such tables do exist, they generally average daily maxima, which reads a little warmer than a full 24-hour mean, so treat any swimming decision on the Atlantic side as a check against a current buoy reading.
How busy is Sintra in April? Crowds and prices
We found no occupancy series and no monthly room-rate data for Sintra, so we crown no month cheap or expensive. What we can price is the gate. Parques de Sintra charges 12 EUR for the Park of Pena alone, 20 EUR for the Essential visit to park and palace, and 45 EUR for the Full Tour, with children under 6 free. Those tariffs do not move with the calendar: April costs what August costs at the ticket desk.
Booking windows are the other thing we could not read from an operator page, so we quote no number of weeks ahead. The published times do shape the day. The Palace of Pena takes its last admission at 17:30 while the park stays open until 19:00, so a late train out of Lisbon can still buy the 12 EUR park tier and 210 hectares to walk. For the trains themselves we could confirm neither a fare nor a journey time, and our transport guide is where to check before you commit.
We could not verify a lodging-tax rate for the municipality, so we give no per-night amount. Build the budget with what a week in Portugal costs, then add a ticket line once your itinerary names the monuments rather than the town.
Paying more changes exactly one thing in April, and it is the walk up. The round-trip transfer between the park entrance and the Palace of Pena costs 4.50 EUR, which is the best small money on the hill on a wet morning and a steep wet path. The step from 12 to 20 EUR buys you an interior, and that matters on a day the cloud never lifts off the ridge.
Things to do in Sintra in April: Pena, Monserrate and the Moorish Castle
Cool air is what April hands anyone who came to walk. Sintra is a vertical day: town, castle, palace, then gardens. Doing that under a 67.8°F ceiling is a different proposition from doing it in July, and 13 hours 17 minutes of light leaves room for three gates rather than two. Start at the 09:00 opening and the hill is behind you by lunch.
The Park of Pena covers 210 hectares (about 520 acres) behind a stone wall, planted from around 1840 by Ferdinand II with species brought from North America, Asia and New Zealand, and it takes in both the Tapada do Mocho and the Moorish Castle. The castle opens 09:30 to 18:00 and costs 12 EUR, or 10 EUR for ages 6 to 17 and visitors over 65. Monserrate, on the northern slopes, is a 50-hectare park holding over 3,000 exotic species arranged by microclimate zone, at 12 EUR.
Those 3,000 species stand at Monserrate in every month of the year. April moves the air around them, not the planting: 67.8°F against May’s 73.0°F, under a sky that rains more often. The same holds for the Convent of the Capuchos, 11 EUR, open 09:00 to 17:30, and for the National Palace of Sintra in the town center, 09:30 to 18:30 at 13 EUR. Rain sends you indoors at those two, and April supplies the rain.
Free entry exists here, and not only in gardens. Villa Sassetti opens 10:00 to 18:00 at no charge, and the gardens of the National Palace of Sintra cost nothing either. Both sit inside the Cultural Landscape of Sintra, on the UNESCO list since 1995 under criteria (ii), (iv) and (v), a property of 946 hectares ringed by a buffer zone of 3,641 hectares. On a wet afternoon that pairing fills two hours without another ticket.
Sintra in April: a two-day itinerary
Day one stays on the hill. At 09:00 the Park of Pena opens and the 4.50 EUR transfer starts running, with the palace following at 09:30. Out by 11:30, walk down to the Moorish Castle, open from 09:30 at 12 EUR, for the ridge and the view across the property. Lunch in town after 13:30, when the day has reached its warmest. The National Palace of Sintra runs to 18:30 at 13 EUR, and sunset at 20:14 leaves the evening for dinner rather than a station platform.
Day two goes west. Monserrate opens its park at 09:00 and its palace at 09:30, 12 EUR for the 50 hectares and the 3,000 species. Add the Convent of the Capuchos at 11 EUR before it closes at 17:30, or run out to the Cabo da Roca Lighthouse, 09:30 to 17:30, 5 EUR for the courtyard and interpretation center and 10 EUR to climb the tower. If the sky turns, and it does on nearly eight April days, trade the cape for Pena’s interior on the 20 EUR tier and save the walking for the next clear morning.
Sintra in April vs March and May
| Measure | March | April | May |
|---|---|---|---|
| Average high | 65.1°F | 67.8°F | 73.0°F |
| Average low | 50.5°F | 53.2°F | 57.4°F |
| Precipitation | 2.63 in | 2.50 in | 2.00 in |
| Days with 1 mm (0.04 in) or more | 7.2 | 7.7 | 5.7 |
| Sea temperature | Not verified | Not verified | Not verified |
March runs 65.1°F by day and 50.5°F at night, April 67.8°F and 53.2°F, May 73.0°F and 57.4°F. April therefore gains 2.7°F on March and concedes 5.2°F to May. The wet-day row holds the surprise: April’s 7.7 days is the highest of the three, above March’s 7.2 and well above May’s 5.7, even though April’s 2.50 inches falls short of March’s 2.63. More frequent rain, slightly less of it.
Shift the trip four weeks forward and you gain 5.2°F on the afternoon, two fewer wet days and half an inch less rain, at whatever May does to hotel demand, something we cannot document. Shift four weeks back and March is cooler, marginally drier by total, and just as prone to hill mist. For a visit built on walking rather than swimming, the four weeks forward are worth more than the four weeks back.
Is April a good time to visit Sintra?
Yes, if you came to walk gardens and climb to battlements. An afternoon ceiling of 67.8°F with grip underfoot suits the 210 hectares at Pena and the 50 at Monserrate about as well as any month will. No, if the vacation needs dry ground and warm water: 7.7 wet days is a real tax on a two-day visit, and we cannot put a figure on the sea.
If the answer is no, take May instead. Afternoons of 73.0°F, 5.7 wet days and 2.00 inches of rain make it the more dependable half of the pair, and it still lands before the deep summer that the national calendar flags for heat and crowds.
What April alone delivers: 13 hours 17 minutes of daylight while the afternoon stays under 68°F, the combination the hill walks best in.
The last word
Decide the shape before you decide the month. A day trip from Lisbon in April buys you the hill and nothing else, while two nights in town let a wet morning pass without wrecking the plan. Parques de Sintra runs eleven parks and monuments across this landscape, and the whole property has been classified a National Monument, inside the Sintra-Cascais Natural Park, under national legislation since 1994. Pick three of the eleven: 13 hours of April light will not cover more.
Sources & data for this guide
- April, March and May normals (highs, lows, precipitation, rain days) · IPMA, climatological normals 1991–2020, station 579 Lisboa Gago Coutinho, 103.9 m · checked Sep 22, 2026
- Rain-day thresholds of 1 mm and 10 mm, and their difference from the 0.10-inch US threshold · IPMA · checked Sep 22, 2026
- Daylight, sunrise 05:57 UTC and sunset 19:14 UTC on April 15, converted to 06:57 and 20:14 local · sunrise-sunset.org · checked Sep 22, 2026
- Ticket prices, opening times and last admissions at Pena, the Moorish Castle, Monserrate, Capuchos, the National Palace, Villa Sassetti and Cabo da Roca · Parques de Sintra – Monte da Lua, « Opening Times and Prices » · checked Sep 22, 2026
- Inscription of 1995, criteria (ii), (iv), (v), 946-hectare property and 3,641-hectare buffer, Park of Pena at 210 hectares, Monserrate at 50 hectares and 3,000 species · UNESCO World Heritage Centre, file 723 · checked Sep 22, 2026
- Editorial admission: we could not read a Lisbon–Sintra train fare, a journey time or a Serra bus timetable from an operator page, and we could not verify a sea-surface temperature or a lodging-tax rate, so no such figures appear. Hours and prices change · check the operator when you book.